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Thread: Anyone into Infra-red photography?

  1. #1
    Member Adiemus's Avatar
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    Talking Anyone into Infra-red photography?

    Hey all,

    Anyone here into infra-red photography?
    I hope to get an infra-red filter to try out.
    Anyone got recommendations? I'm torn between B+W and Hoya Infra red filters. anyone used either brands before? got comments?

    If so,please quote model and brand. Also please post sample shots for discussion. thanks.

  2. #2

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    Seems there are quite a number user uses Hoya R72. I'm not into infra photography, at least for now.

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    i used to try it out on my 10D
    but the results were not what i expected..

    so whenever i shoot infra red.. i either use my pro consumer cam with filter or i go back to film...

    i heard tt DsLR is not compatible with infra red

    how true.. im not sure

    can anyone testify?

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    Member Adiemus's Avatar
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    Teerex took some very nice shots on his D70 some time back. Unfortunately, he removed the pics already...

    http://forums.clubsnap.org/showthrea...&highlight=SBG

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    Senior Member Virgo's Avatar
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    Quote Originally Posted by RuthBaby
    i used to try it out on my 10D
    but the results were not what i expected..

    so whenever i shoot infra red.. i either use my pro consumer cam with filter or i go back to film...

    i heard tt DsLR is not compatible with infra red

    how true.. im not sure

    can anyone testify?
    Yep. I used my 10D with Hoya R72, but 'spotting' occurs. A lot of them say it's the anti-UV coating on the sensor that causes this problem.
    Kind Regards
    My Picture Website

  6. #6

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    I tot IR filter depends on the lens, not the body?
    Some lenses are IR sensitive, some are not.

  7. #7

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    hm. i haven't seen that much stuffs but personally i've a shoot done with one of the photographers using ir filter.. effect was hm..sweet. pm if you wanna see any shots lol.

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    Quote Originally Posted by E-Lim
    I tot IR filter depends on the lens, not the body?
    Some lenses are IR sensitive, some are not.
    Actually...IR sensitivity depends a lot on the receiving medium...ie: CCD, CMOS sensors or IR films...the IR filter just filter away most of the other spectrum while still allowing the spectrum containing the IR portion of light thru to the recording medium...

    Most Digicam are sensitive to the IR spectrum...to different extends...I took some with my C5050...results...well...need to post process lor...but I quite happy with it lah...me no expert lah...just sharing what I know...

    Here's an example...a lil soft I know...but thats IR photography...


  9. #9

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    just want to ask. how come the dog is black?
    from what i understand, hot subject will turn our white, cold subject will turn out black

    a dog as a mammal, is warm blooded, so should not appear black right? not unless it's

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    Quote Originally Posted by zodnm
    just want to ask. how come the dog is black?
    from what i understand, hot subject will turn our white, cold subject will turn out black

    a dog as a mammal, is warm blooded, so should not appear black right? not unless it's
    True...but hvta remember wat the camera see is what's reflected into the lens...so relative to the dog's surroundings...the dog's fur is reflecting less IR compaired to the surrounding leaves/grass...therefore appears darker than its surroundings...

    at least tats what I understand...

  11. #11

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    Check this out for DSLR IR photography -> www.irdigital.net
    Not sure if it's a permanent change to your DSLR though.

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    Default The fur is doing its job....

    Quote Originally Posted by zodnm
    a dog as a mammal, is warm blooded, so should not appear black right?
    The fur retains heat, so little is emanated as IR. A Polar Bear is the epitome of that. Near zero IR emissions from its body, just a white dot from its nose. (Check it out!)

    Hairless animals (humans) shed the fur to better moderate body temp. So skin is a good IR emitter.

  13. #13

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    Well, more correctly, we are taking Near IR pics. So the dog does not radiate Near IR. The type of radiant heat from bodies is more than 1000nm.

    Infra red photography a bit leh che, need to bring at least a monopod. And it's hot as you do need sunlight.

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    Moderator teerex's Avatar
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    Quote Originally Posted by Adiemus
    Teerex took some very nice shots on his D70 some time back. Unfortunately, he removed the pics already...

    http://forums.clubsnap.org/showthrea...&highlight=SBG

    Adiemus I'm using Hoya R72. Here are the pics again.
    Appreciate some comments.

    Here's a link to IR Photography to share.







    Last edited by teerex; 15th July 2004 at 09:10 AM.

  15. #15
    Moderator teerex's Avatar
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    Default IR Filter

    There seem to be a misconception here by a couple of members on IR. As per my understanding InfraRed is dependant on the light spectrum.

    The IR filter allows a certain spectrum of light thru' and has nothing to do with heat or body temperature.

    Imaging, either on still or video which is dependant of body temperature is "Thermal Imaging". Thus IR photography has nothing to do with body temperature.

    The dog in the picture is black is because the W/B set does not warrant for black to appear as white.

    W/B is a very important factor is IR photography. It is the preset W/B that makes certain things in a image to appear as white.

    No offence, but the above is per my understanding. Correct me if I'm wrong.

    Cheers

  16. #16

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    yes, it was my misunderstanding. i confused ir with thermal imaging.


  17. #17
    Member Adiemus's Avatar
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    thank you all.. for all those who gave advise.

    will be testing a Hoya R72 soon.

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